diff --git a/modules/boersenchecker/api/index.php b/modules/boersenchecker/api/index.php
index 428674b8..e60b1b8a 100644
--- a/modules/boersenchecker/api/index.php
+++ b/modules/boersenchecker/api/index.php
@@ -2,6 +2,7 @@
 
 declare(strict_types=1);
 
+require_once dirname(__DIR__, 3) . '/src/App/bootstrap.php';
 require_once dirname(__DIR__) . '/bootstrap.php';
 
 $requestUri = (string) ($_SERVER['REQUEST_URI'] ?? '');